In the 2005 film Sahara there is an odd moment where a strange skeleton appears. Here's a screen shot:
It is the scene about 1 hour 40 minutes into the movie - just after Al jumps out to avoid getting burned.
Obviously, it was some sort of glitch where something changed, and the scene didn't get edited out. Wondering what the back story is - why they thought there would be some sort of large animal there.